GSD-2022-1004812 net: tun: avoid disabling NAPI twice

net: tun: avoid disabling NAPI twice This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.251 by commit a12fae7621434d0360202156e13969874e00266...